How do I cope with workplace conflict when I dread seeing him at work?

Like this guy who I kinda trusted says something negative my way and I still can’t get it over it feels very heavy in my chest and the fact that we don’t speak anymore like that I just hate the fact that I have to see him again and to add on top of that my little new friend is making it worse bc she’s in that group and is so cool with this guy knowing I can’t Stand him at the moment she be all nodding to him and chatty… anyways what do I seriously do? I can’t quit so

How do I cope with workplace conflict when I dread seeing him at work?
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